import Vue from 'vue'
import VueRouter from 'vue-router'

// import Login from './components/Login.vue'
const Login = () => import(/* webpackChunkName: "login_home_welcome" */ '@/components/login.vue')
// import Home from './components/Home.vue'
const Home = () => import(/* webpackChunkName: "login_home_welcome" */ '@/components/Home.vue')
// import Welcome from './components/Welcome.vue'
const Welcome = () => import(/* webpackChunkName: "login_home_welcome" */ '@/components/Welcome.vue')
 
// import Users from './components/user/Users.vue'
const Users = () => import(/* webpackChunkName: "Users_Rights_Roles" */ '@/components/user/Users.vue')
// import Rights from './components/power/Rights.vue'
const Rights = () => import(/* webpackChunkName: "Users_Rights_Roles" */ '@/components/power/Rights.vue')
// import Roles from './components/power/Roles.vue'
const Roles = () => import(/* webpackChunkName: "Users_Rights_Roles" */ '@/components/power/Roles.vue')
 
// import Cate from './components/goods/Cate.vue'
const Cate = () => import(/* webpackChunkName: "Cate_Params" */ '@/components/goods/Cate.vue')
// import Params from './components/goods/Params.vue'
const Params = () => import(/* webpackChunkName: "Cate_Params" */ '@/components/goods/Params.vue')
 
// import GoodsList from './components/goods/List.vue'
const GoodsList = () => import(/* webpackChunkName: "GoodsList_Add" */ '@/components/goods/List.vue')
// import Add from './components/goods/Add.vue'
const Add = () => import(/* webpackChunkName: "GoodsList_Add" */ '@/components/goods/Add.vue')
 
// import Order from './components/order/Order.vue'
const Order = () => import(/* webpackChunkName: "Order_Report" */ '@/components/order/Order.vue')
// import Report from './components/report/Report.vue'
const Report = () => import(/* webpackChunkName: "Order_Report" */ '@/components/report/Report.vue')

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' }, // 自動重定向到登入界面
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome', // Home重定向到welcome界面
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: Users },
      { path: '/rights', component: Rights },
      { path: '/roles', component: Roles },
      { path: '/categories', component: Cate },
      { path: '/params', component: Params },
      { path: '/goods', component: GoodsList },
      { path: '/goods/add', component: Add },
      { path: '/orders', component: Order },
      { path: '/reports', component: Report }
    ]
  },
]

const router = new VueRouter({
  routes
})

//掛載路由導航守衛 
router.beforeEach((to, from, next) => {
  /*to將要訪問的路徑
  from代表從哪個路徑跳轉而來
  next 函數,表示放行 1.next()放行 next('/login')強置跳轉
  */
  if (to.path === '/login') return next();
  //獲取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})


export default router
